cPanel backup downloads corrupt

PartnerNOC

I opened a new bug on this but have had no response.... has anyone else for this probem?

cPanel version: 9.4.1-S56

We have the WHM/cPanel backup script enabled on all servers in incremental mode to make and store daily, weekly and monthly backups.

When a user clicks the backup link in their cPanel and clicks either the 'daily', 'weekly' or 'monthly' backup download button, the download completes (looks to be correct size) but cannot be opened with programs such as Winzip or WinRAR. The software reports corrupt archive. This has been tested and confirmed on two separate servers.

Backups from the "Full Backups" and "Home Directory"backup links are fine... it's just the three buttons downloads which are corrupt.